package info.hexin.netty.test1;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;


public class DiscardServer {
    private int port;

    public DiscardServer(int port) {
        this.port = port;
    }

    public void run() throws Exception {
        EventLoopGroup bossGroup = new NioEventLoopGroup(); // (1)
        EventLoopGroup workerGroup = new NioEventLoopGroup();
        try {
            ServerBootstrap b = new ServerBootstrap(); // (2)
            b.group(bossGroup, workerGroup)
                    .channel(NioServerSocketChannel.class) // (3)
                    .childHandler(new ChannelInitializer<SocketChannel>() { // (4)
                        @Override
                        public void initChannel(SocketChannel ch) throws Exception {
                            ChannelPipeline pipeline = ch.pipeline();
//                            pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));
//                            pipeline.addLast("frameEncoder", new LengthFieldPrepender(4));
//                            pipeline.addLast("decoder", new StringDecoder(CharsetUtil.UTF_8));
//                            pipeline.addLast("encoder", new StringEncoder(CharsetUtil.UTF_8));
                            pipeline.addLast(new DiscardServerHandler());
                        }
                    });
//                    .option(ChannelOption.SO_BACKLOG, 128)          // (5)
//                    .childOption(ChannelOption.SO_KEEPALIVE, true); // (6)

            ChannelFuture f = b.bind(port).sync(); // (7)
            f.channel().closeFuture().sync();
        } finally {
            workerGroup.shutdownGracefully();
            bossGroup.shutdownGracefully();
        }
    }

    public static void main(String[] args) throws Exception {

        new DiscardServer(8007).run();
    }
}
